Combined door-knob and push-button.



P. J. ODONNELL. COMBINED DOOR KNOB- AND PUSH BUTTON.

Patented Aug. 15,1911.

APPLICATION FILED JAN. 24. 1910.

UNITED STATES. PAT I PATRICK J. o'noimnnn, ornnwnnk JERSEY.

Specification of Letters Patent.

comismnn noonrxiuon AND l nen-cursors.

Patented Aug 15;,

Application filed January 24, 1910. Serial No. 539,8Ql.

To all whom it may concern:

Be it known that Lla'rnicn J. ODoN- NELL, a citizen of theUnitedfitates, residing at Newark, in the county of Essex and State ofNew Jersey, have invented certain new and useful Improvements inCombined Door-Knobs and Push-Buttons; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings,and to figures of reference marked thereon, which form a part of this.specification.

This invention relates to a combined doorknob and push-button that isdesigned to provide a knob that is mounted on a spinspindle is vtubularand dle, which spindle is adapted to act as a tube for the wires, theknob also having, on

its periphery, a series of push-buttons which,

are adapted to 'make electrical connection when pushed.-

The invention is further designed to provide the knob with buttons thatare normally a slight distance below the surface of its periphery sothat they are not actuated accidentally when the knob is grasped andturned.

The invention is illustrated in the accom panying drawing, inwhich-Figure 1 is an elevation half 'insection of the improved knob, andFig. 2 is a face view broken away to show the interior construction.Fig. 3 is a diagrammatic view of a wiring system in which the knob isused.

. The knob can be made in any well known manner, but is preferably madeof two members 10 and 11, the member 10 having a collar 12 thereon whichis screwed or otherwise secured to a s indie 13, which orms conductingmeans for the wires to be hereinafter described; The member 10 isprovided with a series of radially arranged perforations 14 which areenlarged at the bottom to 'form a recess 15, and in each perforation'ber 10 and then through the tubular spindle 13, passing out through anopening 27 in the side of the tubular spindle. The two members 10 and 11are prei erably held together by of thescrewvs Q8, and in'this way astructure that is free from unnecessary projecting elements is devisedand one in which a multiplicity or series of push-buttons are availableon the periphery of a. knob for a door or for other like purposes, itbeing understood that the periphery of the knob can be provided withsuitable legends identifying the buttons, or the buttons themselves canbe marked. In Fig. 3 is iilustrated, diagranunati the arrangement thediffs ent slow the wires 18 each running t bell 29, and each bell 2? isconne d w wire 30 which runs to a battery 31 or other suitable source ofelectrical energy, the return wire 25 connecting the battery with thecontact ring. The outward movement of each button is limited, andpreferably by making a flange 32 on each butt-on 16, the flange engagingthe end or the reces The push-buttons arranged 1 periphery of the knobare close one-i gether to ermit a group them be ated by the fingers ofone so different apartments are to h" ously called, as in the case of isdesired to arouse them, be and simultaneousiy done.

Having thusdescribed my invention, what I claim is 1. A door-knob of theconventional type forming a grip, a tubular spindle on which the knob ismounted, ssh-buttons arranged to slide in the eripery of the knob andradially in relation to the spindle, the buttons being arranged slightlybelow the surface of the periphery of the knob, contacts adapted to beoperated. by each button, and wires connected with the contacts, saidwires comprising electric circuits, one of which is closed when a buttonis pushed, the dis position of the buttons below the surface of the knobpreventing any accidental operation when the knobis grasped to beturned.

2. A knob, a tubular spindle on which the knob is mounted, a series ofbuttons radially arranged to slide in the knob, a contact ring in theknob, a wire passing through the spindle and the knob and connected withthe contact ring, sets of electrical contacts in the knob each set beingadapted to be brought together when its button in the series-of buttonsis pressed, wires passing from one contact of each set to the contactring, and wires passing through the tubular spindle and the knob andconnected with the second contact of each set of contacts.

3. A door-knob, a tubular spindle on which the knob is mounted, the knobhaving a chamber therein, a contact ring in the chamber, a wire passingfrom the contact through the chamber and the tubular spindle,

a series of push-buttons slidably arranged in the periphery of the knob,the knob having a recess underneath each push-button, a contact stripbearing on each push-button to normally hold it in its inoperativeposition, a wire connecting each contact strip with the contact ring,and a second contact in each recess, each of the second contacts havinga wire passing therefrom through the chamber and the knob and throughthe tubular spindle.

4. A door-knob of the conventional type, a tubular spindle on which theknob is mounted, the tubular spindle acting as a conductor for wires,contacts in the knob, the wires being connected to the contacts, thewires being adapted to conduct an electric current, and push-buttonseach adapted to operate a set of contacts to close the circuit, thebuttons being arranged around the periphery of the knob whereby amultiplicity of the buttons can be operated by the fingers of one hand.

In testimony, that I claim the foregoing, I have hereunto setmy handthis 20th day of January, 1910.

PATRICK J. ODONNELL.

Witnesses:

WM. H. CAMFIELD E. A. PELL.

